TREB.U / Trebia Acquisition Corp. Units, each consisting of one Class A Ordinary Share, and one-third of one - Документы SEC, Годовой отчет, Доверенное заявление

Подразделения Trebia Acquisition Corp., каждое из которых состоит из одной обыкновенной акции класса А и одной трети одной
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ЭТОТ СИМВОЛ БОЛЬШЕ НЕ АКТИВЕН

Основная статистика
CIK 1805833
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Trebia Acquisition Corp. Units, each consisting of one Class A Ordinary Share, and one-third of one
SEC Filings (Chronological Order)
На этой странице представлен полный хронологический список документов SEC, за исключением документов о собственности, которые мы предоставляем в других местах.
August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 7, 2025 System1, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 7, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

August 7, 2025 EX-99.2

Investor Deck August 2025 2021 York Mountain Syrah - $78 Exhibit 99.2 Disclaimer Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc. (together with its subsidiaries, collectively “S

system1investorpresentat Investor Deck August 2025 2021 York Mountain Syrah - $78 Exhibit 99.

August 7, 2025 EX-99.1

System1 Announces Strong Second Quarter 2025 Financial Results

Exhibit 99.1 System1 Announces Strong Second Quarter 2025 Financial Results •Revenue Decreased 17% Year-Over-Year to $78.1 million •GAAP Gross Profit Increased 7% Year-Over-Year to $27.9 million •Adjusted Gross Profit Increased 6% Year-Over-Year to $41.0 million •GAAP Net Loss Improved 38% Year-Over-Year to $21.5 million •Adjusted EBITDA Increased 18% Year-Over-Year to $11.7 million LOS ANGELES, C

August 7, 2025 EX-99.1

System1, Inc. Unaudited Statements of Operations (in thousands) QTD QTD QTD QTD QTD QTD YTD YTD YTD YTD 30-Jun-25 31-Mar-25 31-Dec-24 30-Sep-24 30-Jun-24 31-Mar-24 30-Jun-25 31-Dec-24 30-Sep-24 30-Jun-24 Revenue 78,116 74,513 75,594 88,832 94,581 84,

q225supplementalfinancia System1, Inc. Unaudited Statements of Operations (in thousands) QTD QTD QTD QTD QTD QTD YTD YTD YTD YTD 30-Jun-25 31-Mar-25 31-Dec-24 30-Sep-24 30-Jun-24 31-Mar-24 30-Jun-25 31-Dec-24 30-Sep-24 30-Jun-24 Revenue 78,116 74,513 75,594 88,832 94,581 84,917 152,628 343,925 268,330 179,498 Operating cost and expenses: Cost of revenues 50,213 46,077 43,777 63,999 68,507 66,319 9

August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 7, 2025 System1, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 7, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

August 7, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39331 System1, Inc. (

July 3, 2025 CORRESP

SYSTEM1, INC. 4235 Redwood Avenue Los Angeles, CA 90066

SYSTEM1, INC. 4235 Redwood Avenue Los Angeles, CA 90066 July 3, 2025 VIA EDGAR Securities and Exchange Commission Division of Corporation Finance Office of Technology 100 F Street, N.E. Washington, D.C. 20549 Attn: Alexandra Barone Re: System1, Inc. Registration Statement on Form S-3, filed June 27, 2025 File No. 333-288380 Dear Ms. Barone: In accordance with Rule 461 promulgated under the Securit

June 27, 2025 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) System1, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry For

June 27, 2025 S-8

As filed with the Securities and Exchange Commission on June 27, 2025

As filed with the Securities and Exchange Commission on June 27, 2025 Registration No.

June 27, 2025 S-3

As filed with the Securities and Exchange Commission on June 27, 2025

As filed with the Securities and Exchange Commission on June 27, 2025 Registration No.

June 27, 2025 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) System1, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit (3) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A Common Stock, par val

June 11, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 11, 2025 System1, Inc. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 11, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commis

June 11, 2025 EX-3.1

Certificate of Amendment to Certificate of Incorporation of System1, Inc.

Exhibit 3.1 CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION OF SYSTEM1, INC. System1, Inc., a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “Corporation”), does hereby certify as follows: FIRST: That resolutions were duly adopted by the Board of Directors of the Corporation recommending and declaring advisable that the

June 11, 2025 EX-99.1

System1 Class A Common Stock to Begin Trading on a Split-Adjusted Basis on June 12, 2025

Exhibit 99.1 System1 Class A Common Stock to Begin Trading on a Split-Adjusted Basis on June 12, 2025 LOS ANGELES, CA – June 11, 2025 – System1, Inc. (NYSE: SST) (“System1” or the “Company”), an omnichannel customer acquisition marketing platform, previously announced on June 10, 2025, that the Company’s board of directors has approved a reverse stock split (the “Reverse Stock Split”) of all of it

June 10, 2025 EX-99.1

System1 Announces Reverse Stock Split Shares Expected to Begin Trading on a Split-Adjusted Basis on June 12, 2025

Exhibit 99.1 System1 Announces Reverse Stock Split Shares Expected to Begin Trading on a Split-Adjusted Basis on June 12, 2025 LOS ANGELES, CA – June 10, 2025 – System1, Inc. (NYSE: SST) (“System1” or the “Company”), an omnichannel customer acquisition marketing platform, today announced that its board of directors has approved a reverse stock split (the “Reverse Stock Split”) of its Class A Commo

June 10, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 10, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commis

June 10, 2025 EX-10.1

First Amendment to System1, Inc. 2022 Incentive Award Plan.

Exhibit 10.1 FIRST AMENDMENT TO SYSTEM1, INC. 2022 INCENTIVE AWARD PLAN THIS FIRST AMENDMENT (this “First Amendment”) to the System1, Inc. 2022 Incentive Award Plan is made and adopted by the Board of Directors (the “Board”) of System1, Inc., a Delaware corporation (the “Company”), on May 5, 2025, and effective as of June 10, 2025, the date of the Company’s 2025 annual meeting of stockholders (pro

June 10, 2025 EX-10.2

Second Amendment to the System1, Inc. Stock Appreciation Rights Plan

Exhibit 10.2 SECOND AMENDMENT TO SYSTEM1, INC. 2024 STOCK APPRECIATION RIGHTS PLAN THIS SECOND AMENDMENT (this “Second Amendment”) to the System1, Inc. 2024 Stock Appreciation Rights Plan is made and adopted by the Board of Directors (the “Board”) of System1, Inc., a Delaware corporation (the “Company”), on May 5, 2025, and effective as of June 10, 2025, the date of the Company’s 2025 annual meeti

May 23, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 22, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commiss

May 19, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

May 8, 2025 PRE 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

May 6, 2025 EX-99.1

System1 Announces Strong First Quarter 2025 Financial Results

Exhibit 99.1 System1 Announces Strong First Quarter 2025 Financial Results All Key Financial Results At or Above the High-End of Guidance Range •Revenue Decreased 12% Year-Over-Year to $74.5 Million •GAAP Gross Profit Increased 53% Year-Over-Year to $28.4 Million •Adjusted Gross Profit Increased 33% Year-Over-Year to $41.5 million •GAAP Net Loss Increased 44% Year-Over-Year to $19.9 Million •Adjus

May 6, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commissi

May 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39331 System1, Inc.

May 6, 2025 EX-99.1

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1,

q12025supplementalfinan System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC (in thous

May 6, 2025 EX-99.2

Investor Deck May 2025 2021 York Mountain Syrah - $78 Disclaimer Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc. (together with its subsidiaries, collectively “System1”) and doe

Investor Deck May 2025 2021 York Mountain Syrah - $78 Disclaimer Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc.

May 6, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 6, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commissi

April 29, 2025 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 28, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

April 25, 2025 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No.1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No.1) (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331

April 23, 2025 S-8

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 System1, Inc. (Exact name of registrant as specified in its charter)

As filed with the Securities and Exchange Commission on April [ ], 2025 Registration No.

April 23, 2025 EX-FILING FEES

Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) System1, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit (3) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A Common Stock, par val

April 22, 2025 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange ("NYSE" or the "Exchange") hereby notifies the Securities and Exchange Commission (the "Commission") of its intention to remove the entire class of Warrants, each whole warrant exercisable for one share of Class A Common Stock at an exercise price of $11.

April 18, 2025 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 15, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

April 7, 2025 8-K

Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 7, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commis

March 10, 2025 EX-21.1

Subsidiaries of Registrant

Exhibit 21.1 Subsidiaries of System1, Inc. Subsidiary name Jurisdiction System1 Holdings, LLC Delaware S1 Media, LLC Delaware S1 Holdco, LLC Delaware System1 S1, Inc. Delaware Orchid Merger Sub II, LLC Delaware System1 OpCo, LLC Delaware Sonic Newco LLC Delaware System1 Canada ULC Nova Scotia MapQuest Holdings, LLC Delaware MapQuest Services Holdings LLC Delaware System1 Waterfox Holdings LLC Dela

March 10, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, Inc. (Exac

March 10, 2025 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 10, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

March 10, 2025 EX-97.1

Policy for Recovery of Erroneously Awarded Compensation.

Exhibit 97.1 SYSTEM1, INC. POLICY FOR RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION System1, Inc. (the “Company”) has adopted this Policy for Recovery of Erroneously Awarded Compensation (the “Policy”), effective as of October 26, 2023 (the “Effective Date”). Capitalized terms used in this Policy but not otherwise defined herein are defined in Section 11. 1.Persons Subject to Policy This Policy sha

March 10, 2025 EX-99.2

Investor Deck March 2025 2021 York Mountain Syrah - $78 Disclaimer Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc. (together with its subsidiaries, collectively “System1”) and d

Investor Deck March 2025 2021 York Mountain Syrah - $78 Disclaimer Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc.

March 10, 2025 EX-99.1

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1,

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC System1, Inc. System1, Inc. System1, Inc. Syste

March 10, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 10, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

March 10, 2025 EX-99.1

System1 Announces Fourth Quarter and Full Year 2024 Financial Results

Exhibit 99.1 System1 Announces Fourth Quarter and Full Year 2024 Financial Results Fourth Quarter Financial Highlights: •Revenue Decreased 21% Over Prior Year to $75.6 million •Gross Profit Increased 28% Over Prior Year to $31.8 million •Adjusted Gross Profit Increased 19% Over Prior Year to $44.7 million •GAAP Net Loss Decreased 29% Over Prior Year to $18.0 million •Adjusted EBITDA Increased 79%

January 10, 2025 8-K

Regulation FD Disclosure, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 6, 2025 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Comm

January 10, 2025 EX-99.1

System1 Receives Notice of Non-Compliance with New York Stock Exchange Trading Share Price Listing Rule Company Intends to Cure the Deficiency and Regain Compliance with NYSE Notice Has No Immediate Impact on the Listing or Trading of System1’s Class

Exhibit 99.1 System1 Receives Notice of Non-Compliance with New York Stock Exchange Trading Share Price Listing Rule Company Intends to Cure the Deficiency and Regain Compliance with NYSE Notice Has No Immediate Impact on the Listing or Trading of System1’s Class A Common Stock LOS ANGELES, CA – January 10, 2025 – System1, Inc. (NYSE: SST) (“System1” or the “Company”), an omnichannel customer acqu

November 7, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 7, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Com

November 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39331 System1, I

November 7, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 7, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Com

November 7, 2024 CORRESP

4235 Redwood Avenue Marina Del Rey, CA 90066

November 7, 2024 VIA EDGAR TRANSMISSION U.S. Securities and Exchange Commission Division of Corporation Finance Office of Finance 100 F Street NE Washington, D.C. 20549 Attn: Tyler Howes James Lopez Re: System1, Inc. Form 10-K for the Fiscal Year Ended December 31, 2023 Filed March 15, 2024 File No. 001-39331 Dear Messrs. Howes and Lopez: This letter responds to the follow-up letter of the staff (

November 7, 2024 EX-99.1

System1 Announces Strong Third Quarter 2024 Financial Results

Exhibit 99.1 System1 Announces Strong Third Quarter 2024 Financial Results All Key Financial Results At or Above the High-End of Guidance Range •Revenue Increased 1% Over Prior Year to $88.8 Million •GAAP Gross Profit Flat Over Prior Year at $24.8 Million •Adjusted Gross Profit Increased 1% Over Prior Year to $37.6 Million •GAAP Net Loss Increased $4.7 million Over Prior Year to $30.6 Million •Adj

November 7, 2024 EX-99.1

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1,

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC System1, Inc. System1, Inc. System1, Inc. System1, Inc. Syste

September 27, 2024 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K/A (Amendment No. 1) (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331

September 27, 2024 CORRESP

***

September 27, 2024 VIA EDGAR TRANSMISSION U.S. Securities and Exchange Commission Division of Corporation Finance Office of Finance 100 F Street NE Washington, D.C. 20549 Attn: Tyler Howes James Lopez Re: System1, Inc. Form 10-K for the Fiscal Year Ended December 31, 2023 Filed March 15, 2024 File No. 001-39331 Dear Messrs. Howes and Lopez: This letter responds to the letter of the staff (the “Sta

August 8, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission File Number 001-39331 System1, Inc. (

August 8, 2024 EX-10.3

First Amendment to System1, Inc. 2024 Stock Appreciation Rights Plan

US-DOCS\151636974.2 FIRST AMENDMENT TO SYSTEM1, INC. 2024 STOCK APPRECIATION RIGHTS PLAN THIS FIRST AMENDMENT (this “First Amendment”) to the System1, Inc. 2024 Stock Appreciation Rights Plan is made and adopted by the Board of Directors (the “Board”) of System1, Inc., a Delaware corporation (the “Company”), effective as of June 28, 2024 (the “Effective Date”). All capitalized terms used but not o

August 8, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 8, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

August 8, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 8, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

August 8, 2024 EX-99.1

System1 Announces Second Quarter 2024 Financial Results Above High-End of Guidance

Exhibit 99.1 System1 Announces Second Quarter 2024 Financial Results Above High-End of Guidance All Key Financial Results Above the High-End of Guidance Range •Revenue Increased $9.7 Million Over Prior Quarter to $94.6 Million •Gross Profit Increased 40% Over Prior Quarter to $26.1 Million •Adjusted Gross Profit Increased 24% Over Prior Quarter to $38.8 Million •GAAP Net Loss Increased 152% Over P

August 8, 2024 EX-99.1

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1,

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC System1, Inc. System1, Inc. System1, Inc. System1, Inc. Successor + Predece

June 26, 2024 SC 13D/A

SST / System1, Inc. / Trebia Acquisition Corp. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Stanley Blend c/o Lone Star Friends Trust 14122 Bluff Manor Drive San Antonio, TX 78216 (Name, Address and Telephon

June 26, 2024 EX-1

Stock Pledge and Security Agreement and Promissory Note, dated as of June 17, 2024, by and between The Lone Star Friends Trust and CEE Holding Trust (included in

EX-1 2 a12stockpurchaseagreemen.htm EX-1 STOCK PURCHASE AGREEMENT by and between THE LONE STAR FRIENDS TRUST and CEE HOLDING TRUST June 17, 2024 2 TABLE OF CONTENTS ARTICLE I PURCHASE AND SALE .............................................................................................................. 4 Section 1.01 Purchase and Sale. ..............................................................

June 26, 2024 EX-3

Option Letter Agreement, dated as of June 17, 2024, by and between The Lone Star Friends Trust and CEE Holding Trust.

EX-3 3 a3optionletteragreement-.htm EX-3 1 OPTION LETTER AGREEMENT June 17, 2024 CEE Holding Trust c/o Jackson Hole Trust Company, Trustee Attn: Chuck Ursini PO Box 1150 185 W Broadway, Suite 101 Jackson, Wyoming 83001 Re: Option to Purchase a 4,775,000 shares of Class A Common Stock of System1, Inc. Dear Michael: You and CEE Holding Trust (the “Trust”) entered into that certain Stock Purchase Agr

June 25, 2024 SC 13D/A

SST / System1, Inc. / Trebia Acquisition Corp. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 3)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Stanley Blend c/o Lone Star Friends Trust 14122 Bluff Manor Drive San Antonio, TX 78216 (Name, Address and Telephon

June 25, 2024 EX-1

Stock Pledge and Security Agreement and Promissory Note, dated as of June 17, 2024, by and between The Lone Star Friends Trust and CEE Holding Trust (included in

EX-1 2 a12stockpurchaseagreemen.htm EX-1 STOCK PURCHASE AGREEMENT by and between THE LONE STAR FRIENDS TRUST and CEE HOLDING TRUST June 17, 2024 2 TABLE OF CONTENTS ARTICLE I PURCHASE AND SALE .............................................................................................................. 4 Section 1.01 Purchase and Sale. ..............................................................

June 25, 2024 EX-3

Option Letter Agreement, dated as of June 17, 2024, by and between The Lone Star Friends Trust and CEE Holding Trust.

EX-3 3 a3optionletteragreement-.htm EX-3 1 OPTION LETTER AGREEMENT June 17, 2024 CEE Holding Trust c/o Jackson Hole Trust Company, Trustee Attn: Chuck Ursini PO Box 1150 185 W Broadway, Suite 101 Jackson, Wyoming 83001 Re: Option to Purchase a 4,775,000 shares of Class A Common Stock of System1, Inc. Dear Michael: You and CEE Holding Trust (the “Trust”) entered into that certain Stock Purchase Agr

June 21, 2024 EX-4

Option Letter Agreement, dated as of June 17, 2024, by and between Michael Blend and CEE Holding Trust.

EX-4 5 a4optnlttragrmntblendce.htm EX-4 1 OPTION LETTER AGREEMENT June 17, 2024 CEE Holding Trust c/o Jackson Hole Trust Company, Trustee Attn: Chuck Ursini PO Box 1150 185 W Broadway, Suite 101 Jackson, Wyoming 83001 Re: Option to Purchase a 725,000 shares of Class A Common Stock of System1, Inc. Dear Michael: You and the CEE Holding Trust (the “Trust”) entered into that certain Stock Purchase Ag

June 21, 2024 EX-3

Option Letter Agreement, dated as of June 17, 2024, by and between The Lone Star Friends Trust and CEE Holding Trust.

EX-3 4 a3opnlttragrmntlfst-cee.htm EX-3 1 OPTION LETTER AGREEMENT June 17, 2024 CEE Holding Trust c/o Jackson Hole Trust Company, Trustee Attn: Chuck Ursini PO Box 1150 185 W Broadway, Suite 101 Jackson, Wyoming 83001 Re: Option to Purchase a 4,775,000 shares of Class A Common Stock of System1, Inc. Dear Michael: You and CEE Holding Trust (the “Trust”) entered into that certain Stock Purchase Agre

June 21, 2024 EX-2

Stock Purchase Agreement, Stock Pledge and Security Agreement and Promissory Note, dated as of June 17, 2024, by and between Michael Blend and CEE Holding Trust.

EX-2 3 a2stockpurchagrmnt-indiv.htm EX-2 STOCK PURCHASE AGREEMENT by and between MICHAEL BLEND and CEE HOLDING TRUST June 17, 2024 L8500\474697\273551638.v10 2 TABLE OF CONTENTS ARTICLE I PURCHASE AND SALE .............................................................................................................. 4 Section 1.01 Purchase and Sale. .................................................

June 21, 2024 EX-1

Stock Purchase Agreement, Stock Pledge and Security Agreement and Promissory Note, dated as of June 17, 2024, by and between The Lone Star Friends Trust and CEE Holding Trust.

EX-1 2 a1stockpurchagrmnt-lsftc.htm EX-1 STOCK PURCHASE AGREEMENT by and between THE LONE STAR FRIENDS TRUST and CEE HOLDING TRUST June 17, 2024 2 TABLE OF CONTENTS ARTICLE I PURCHASE AND SALE .............................................................................................................. 4 Section 1.01 Purchase and Sale. ..............................................................

June 21, 2024 SC 13D

SST / System1, Inc. / Trebia Acquisition Corp. - SC 13D Activist Investment

SC 13D 1 system1sstschedule13d-ceeh.htm SC 13D UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) CEE Holdings Trust c/o Jackson Hole Trust Company 185 W. Broadway, Suite 101 Jackson Hole

June 20, 2024 S-8

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 System1, Inc. (Exact name of registrant as specified in its charter)

As filed with the Securities and Exchange Commission on [ ], 2024 Registration No.

June 20, 2024 EX-FILING FEES

Filing Fee Table.

Exhibit-107 Calculation of Filing Fee Tables S-8 (Form Type) System1, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price Per Unit (4) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A Common Stock, par value $0

June 14, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 11, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commis

June 14, 2024 EX-3.1

Amendment to the System1, Inc. Certificate of Incorporation

Exhibit 3.1 CERTIFICATE OF AMENDMENT OF CERTIFICATE OF INCORPORATION OF SYSTEM1, INC. System1, Inc., a corporation organized and existing under and by virtue of the General Corporation Law of the State of Delaware (the “Corporation”), does hereby certify as follows: FIRST: That resolutions were duly adopted by the Board of Directors of the Corporation recommending and declaring advisable that the

June 14, 2024 EX-10.1

System1, Inc. 2024 Stock Appreciation Rights Plan.

Exhibit 10.1 SYSTEM1, INC. 2024 STOCK APPRECIATION RIGHTS PLAN 1.Purpose. The purpose of this System1, Inc. 2024 Stock Appreciation Rights Plan (this “Plan”) is to enhance the ability of System1, Inc. (together with any successor, the “Company”) to attract, retain and motivate persons who make (or are expected to make) important contributions to the Company by providing these individuals with equi

June 10, 2024 424B3

Up to 16,812,767 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 60,713,885 Shares of Common Stock Up to 1,600,045 Warrants

 Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 3 (to prospectus dated April 12, 2024) Up to 16,812,767 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 60,713,885 Shares of Common Stock Up to 1,600,045 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April 1

June 7, 2024 EX-16.1

Letter of PricewaterhouseCoopers LLP dated June 7, 2024.

Exhibit 16.1 June 7, 2024 Securities and Exchange Commission 100 F Street, N.E. Washington, DC 20549 Commissioners: We have read the statements made by System1, Inc. (copy attached), which we understand will be filed with the Securities and Exchange Commission, pursuant to Item 4.01 of Form 8-K of System1, Inc. dated June 4, 2024. We agree with the statements concerning our Firm contained therein.

June 7, 2024 8-K

Financial Statements and Exhibits, Changes in Registrant's Certifying Accountant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 4, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commiss

June 3, 2024 POS AM

As filed with the Securities and Exchange Commission on June 3, 2024

As filed with the Securities and Exchange Commission on June 3, 2024 Registration No.

May 31, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Defi

May 21, 2024 PRER14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Defi

May 20, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☐ Defi

May 10, 2024 424B3

Up to 16,812,767 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 61,459,972 Shares of Common Stock Up to 1,600,045 Warrants

 Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 1 (to prospectus dated April 12, 2024) Up to 16,812,767 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 61,459,972 Shares of Common Stock Up to 1,600,045 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April 1

May 10, 2024 424B3

Up to 16,812,767 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 61,459,972 Shares of Common Stock Up to 1,600,045 Warrants

 Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 2 (to prospectus dated April 12, 2024) Up to 16,812,767 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 61,459,972 Shares of Common Stock Up to 1,600,045 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April 1

May 10, 2024 424B3

Up to 16,812,767 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 61,459,972 Shares of Common Stock Up to 1,600,045 Warrants

 Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 3 (to prospectus dated April 12, 2024) Up to 16,812,767 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 61,459,972 Shares of Common Stock Up to 1,600,045 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April 1

May 9, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 9, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commissi

May 9, 2024 EX-99.1

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC System1, Inc. System1, Inc. System1, Inc. Successor + Predecessor Total Successor + Prede

May 9, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, Inc.

May 9, 2024 EX-99.1

System1 Announces First Quarter 2024 Financial Results

Exhibit 99.1 System1 Announces First Quarter 2024 Financial Results All Key Financial Results Above the High-End of Guidance Range •Revenue Decreased $11.2 Million Over Prior Quarter to $84.9 Million •Gross Profit Decreased 25% Over Prior Quarter to $18.6 Million •Adjusted Gross Profit Decreased 17% Over Prior Quarter to $31.2 Million •GAAP Net Loss Decreased 46% Over Prior Quarter to $14 Million

May 9, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 9, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commissi

April 29, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

April 26, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 23, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

April 12, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 10, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

April 9, 2024 CORRESP

April 9, 2024

10250 Constellation Blvd., Suite 1100 Los Angeles, California 90067 Tel: +1.424.653.5500 Fax: +1.424.653.5501 www.lw.com FIRM / AFFILIATE OFFICES Austin Milan Beijing Munich Boston New York Brussels Orange County Century City Paris Chicago Riyadh Dubai San Diego Düsseldorf San Francisco Frankfurt Seoul Hamburg Silicon Valley Hong Kong Singapore Houston Tel Aviv London Tokyo Los Angeles Washington,

March 29, 2024 POS AM

As filed with the U.S. Securities and Exchange Commission on March 29, 2024

As filed with the U.S. Securities and Exchange Commission on March 29, 2024 Registration No. 333-262608 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-1 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 7370 98-1531250 (State or other jurisdiction of

March 21, 2024 SC 13D/A

SST / System1, Inc. / Cannae Holdings, Inc. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Rule 13d-101) Under the Securities Exchange Act of 1934 (Amendment No. 6) System1, Inc. (Name of Issuer) Class A common stock, par value $0.0001 per share (Title of Class of Securities) 87200P109 (CUSIP Number) Bryan D. Coy c/o Cannae Holdings, Inc. 1701 Village Center Circle Las Vegas, NV 89134 (702) 323-7330

March 18, 2024 EX-99.1

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC System1, Inc. System1, Inc. System1, Inc. Successor + Predecessor Total Successor + Predecessor Total S

March 18, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 18, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

March 18, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 18, 2024 System1, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 18, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

March 18, 2024 EX-99.1

System1 Announces Fourth Quarter and Full Year 2023 Financial Results

Exhibit 99.1 System1 Announces Fourth Quarter and Full Year 2023 Financial Results All Key Financial Results Above the High-End of Guidance Range Fourth Quarter Financial Highlights: •Revenue Increased 9% Over Prior Quarter to $96.1 million •Gross Profit Increased 1% Over Prior Quarter to $25 million •Adjusted Gross Profit Increased 1% Over Prior Quarter to $37.5 million •GAAP Net Loss Decreased 2

March 15, 2024 EX-10.26

Insider Trading Policy

System1, Inc. Insider Trading Compliance Policy and Procedures Federal and state laws prohibit trading in the securities of a company while in possession of material nonpublic information and in breach of a duty of trust or confidence. These laws also prohibit anyone who is aware of material nonpublic information from providing this information to others who may trade. Violating such laws can unde

March 15, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, Inc. (Exac

March 15, 2024 EX-97.1

Policy for Recovery of Erroneously Awarded Compensation.

SYSTEM1, INC. POLICY FOR RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION System1, Inc. (the “Company”) has adopted this Policy for Recovery of Erroneously Awarded Compensation (the “Policy”), effective as of October 26, 2023 (the “Effective Date”). Capitalized terms used in this Policy but not otherwise defined herein are defined in Section 11. 1.Persons Subject to Policy This Policy shall apply to c

March 15, 2024 EX-21.1

Subsidiaries of Registrant

Exhibit 21.1 Subsidiaries of System1, Inc. Subsidiary name Jurisdiction S1 Holdco, LLC Delaware System1 S1, Inc. Delaware Orchid Merger Sub II, LLC Delaware System1 OpCo, LLC Delaware Sonic Newco LLC Delaware Infospace Holdings LLC Delaware Qool Media Holdings, LLC Delaware Concourse Media Holdings, LLC Delaware Dotzup Holdings LLC Delaware System1 Canada ULC Nova Scotia System1 Media ULC Nova Sco

February 23, 2024 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 20, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Co

February 22, 2024 SC 13G

SST / System1, Inc. / CEE Holdings Trust - SC 13G Passive Investment

SC 13G 1 system1-13gceexlwdraft2162.htm SC 13G Securities and Exchange Commission Washington, D.C. 20549 Schedule 13G (Rule 13d-102) Information to be Included in Statements Filed Pursuant to § 240.13d-1(b), (c) and (d) and Amendments Thereto Filed Pursuant to § 240.13d-2 UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0

January 17, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 17, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Com

January 5, 2024 SC 13D/A

SST / System1, Inc. / Trebia Acquisition Corp. - SC 13D/A Activist Investment

SC 13D/A 1 system1-sc13dablendlsftxf.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Stanley Blend c/o Lone Star Friends Trust 14122 Bluff Manor Drive

January 5, 2024 SC 13D

SST / System1, Inc. / Trebia Acquisition Corp. - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Nicholas Graeme Baker 16-18 Barnes Wallis Road Segensworth, Fareham, Hampshire, England, PO15 5TT (Name, Address and Telephone Number of

January 5, 2024 SC 13D/A

SST / System1, Inc. / Trebia Acquisition Corp. - SC 13D/A Activist Investment

SC 13D/A 1 schedule13ddecember2023jd.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 7)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Christopher Stephen Phillips c/o Just Develop It Limited Larch Ho

January 5, 2024 SC 13D/A

SST / System1, Inc. / Trebia Acquisition Corp. - SC 13D/A Activist Investment

SC 13D/A 1 schedule13damendment1-nic.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Nicholas Graeme Baker 16-18 Barnes Wallis Road Segensworth, Fareh

January 3, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): January 3, 2024 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Comm

December 14, 2023 EX-FILING FEES

Filing Fee Table.

EX-107 Calculation of Filing Fee Tables S-8 (Form Type) System1, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit(3) Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Class A Common Stock, par value $0.0001 p

December 14, 2023 S-8

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 System1, Inc. (Exact name of registrant as specified in its charter)

As filed with the Securities and Exchange Commission on [ ], 2023 Registration No.

December 7, 2023 SC 13G

SST / System1 Inc - Class A / FOLEY WILLIAM P II - SC 13G Passive Investment

SC 13G 1 wpf-sstschedule13gdec2023.htm SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G (Amendment No. ) Under the Securities Exchange Act of 1934* SYSTEM1, INC. (Name of Issuer) Class A Common Stock, par value $0.0001 per share (Title of Class of Securities) 87200P109 (CUSIP Number) December 4, 2023 (Date of Event Which Requires Filing of this Statement)

December 6, 2023 SC 13D/A

SST / System1 Inc - Class A / Cannae Holdings, Inc. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Rule 13d-101) Under the Securities Exchange Act of 1934 (Amendment No. 5) System1, Inc. (Name of Issuer) Class A common stock, par value $0.0001 per share (Title of Class of Securities) 87200P109 (CUSIP Number) Bryan D. Coy c/o Cannae Holdings, Inc. 1701 Village Center Circle Las Vegas, NV 89134 (702) 323-7330

December 6, 2023 SC 13D/A

SST / System1 Inc - Class A / BGPT Trebia LP - SC 13D/A Activist Investment

SC 13D/A 1 ef20016149sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D/A (Rule 13d-101) UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2) System1, Inc. (Name of Issuer) Class A common stock, par value $0.0001 per share (Title of Class of Securities) 87200P109 (CUSIP Number) Frank Martire, Jr. 220 Fifth Avenue, Floor 17 New York, NY 100

December 4, 2023 8-K

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 30, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Co

December 4, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): December 4, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Com

December 4, 2023 EX-99.2

Pro forma financial information

Exhibit 99.2 - Financial Statements and Exhibits Pro forma financial information The following supplemental pro forma information is presented for informational purposes only, to provide an understanding of the Company’s historical financial results as adjusted for the disposition of Total Security. This pro forma financial information should not be considered a substitute for the actual historica

December 4, 2023 EX-99.1

System1 Announces Sale of Total Security

System1 Announces Sale of Total Security Transaction Provides System1 with $240 Million in Cash to Invest in Core Advertising Business, Improve Liquidity & Leverage LOS ANGELES, CA - November 30, 2023 - System1, Inc.

December 4, 2023 EX-2.1*

Share Purchase Agreement, dated November 30, 2023, by and among System1, Inc., Orchid Merger Sub II, LLC, Sonic Newco, LLC, JDI Antarctica Limited and JDI Antarctica Sub II Limited

Execution Version Date: November 30, 2023 (1) System1, Inc. (2) Orchid Merger Sub II, LLC (3) Sonic Newco, LLC (4) JDI Antarctica Limited (5) JDI Antarctica Sub II Limited SHARE PURCHASE AGREEMENT relating to Total Security Limited (formerly Protected.net Group Limited) |US-DOCS\146366268.12|| CONTENTS 1 Definitions and Interpretation 2 2 Sale and Purchase 2 3 Consideration 3 4 Completion 4 5 No L

December 4, 2023 EX-99.1

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco

System1, Inc./S1 Holdco LLC Pro Forma for Disposition of Total Security Limited Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC System1, Inc. System1, Inc. Successor + Predecessor Total Successor + Predecessor Total Successor + Predecessor Total

December 4, 2023 EX-10.1

Second Amendment to Conditional Consent, Waiver and Acknowledgement, dated as of November 30, 2023, by and among System1, Inc., Total Security Limited, Just Develop It Limited, JDI Antarctica Limited and JDI Antarctica Sub II Limited

Execution Version SECOND AMENDMENT TO CONDITIONAL CONSENT, WAIVER AND ACKNOWLEDGEMENT November 30, 2023 I.

November 17, 2023 SC 13D/A

SST / System1 Inc - Class A / Cannae Holdings, Inc. - SC 13D/A Activist Investment

SC 13D/A 1 cnne-sstschedule13danov2023.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Rule 13d-101) Under the Securities Exchange Act of 1934 (Amendment No. 4) System1, Inc. (Name of Issuer) Class A common stock, par value $0.0001 per share (Title of Class of Securities) 87200P109 (CUSIP Number) Michael L. Gravelle c/o Cannae Holdings, Inc. 170

November 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, I

November 9, 2023 EX-10.6

Receivables Purchase Agreement, dated November 8, 2023, between System1 OpCo LLC (and its wholly-owned subsidiaries signatory thereto) and OAREX Funding, LLC

THIS RECEIVABLES PURCHASE AGREEMENT (the “Agreement”), dated as of November 8, 2023, is between System1 OpCo LLC and its wholly-owned subsidiaries that are signatory to this Agreement (collectively, the “Seller”), and OAREX Funding, LLC a Delaware limited liability company (the “Buyer”).

October 12, 2023 EX-10.3

Debenture relating to Total Security Limited, dated October 6, 2023, by and among Total Security Limited and Onyx Asset Finance Limited

Date: 6 October 2023 (1) Total Security Limited (2) Onyx Asset Finance Limited Debenture relating to Total Security Limited The Pavilion Botleigh Grange Business Park Hedge End Southampton SO30 2AF Ref: SWC01/ONY4/23 CONTENTS 1 Definitions and interpretation 1 2 Covenant to pay 4 3 Grant of security 4 4 Liability of Chargor 6 5 Representations and warranties 6 6 Covenants 7 7 Powers of the Lender

October 12, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): October 6, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Comm

October 12, 2023 EX-10.2

Secured Facility Agreement, dated October 6, 2023, by and among Onyx Asset Finance Limited and Total Security Limited

Date: 6 October 2023 (1) Onyx Asset Finance Limited (2) Total Security Limited Secured Facility Agreement in the sum of USD10,000,000 The Pavilion Botleigh Grange Business Park Hedge End Southampton SO30 2AF Ref: SWC/ONY4/23 CONTENTS 1 Definitions and Interpretation 1 2 The Facility 6 3 Conditions of Drawdown 6 4 DRAWDOWN 6 5 Repayment 7 6 Interest 8 7 Fees 8 8 WARRANTIES AND REPRESENTATIONS 8 9 C

October 12, 2023 EX-10.1

Term Loan Note, dated October 6, 2023, by and between Openmail2, LLC and Orchid Merger Sub II, LLC

TERM LOAN NOTE US $2,500,000 October 6, 2023 FOR VALUE RECEIVED, OPENMAIL2, LLC, a Delaware limited liability company (the “Lender”) agrees to make a loan (the “Loan”) to ORCHID MERGER SUB II, LLC, a Delaware limited liability company (the “Borrower”), in an aggregate outstanding amount not to exceed the principal sum of $2,500,000 (the “Commitment”), on the terms set forth below.

September 12, 2023 EX-10.1

Senior Unsecured Promissory Note, dated September 6, 2023, by and between System1 OpCo, LLC and Marc Mezzacca

Execution Version SENIOR UNSECURED PROMISSORY NOTE $5,156,485.19 September 6, 2023 FOR VALUE RECEIVED, SYSTEM1 OPCO, LLC, a Delaware limited liability company (the “Borrower”) agrees to pay to the order of MARC MEZZACCA (“Lender”) the aggregate principal amount of Five Million One Hundred Fifty-Six Thousand Four Hundred Eighty Five and 19/100 Dollars ($5,156,485.19) (the “Loan”), together with int

September 12, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 6, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Co

September 6, 2023 EX-1

Indication of Interest, dated as of

Willkie Draft 9/1/23 PERSONAL & CONFIDENTIAL September [], 2023 Ms. Moujan Kazerani Chair of the Special Committee of the Board of Directors System1, Inc. 4235 Redwood Avenue Marina del Rey, CA 90066 Via email Re: Total Security Limited Dear Moujan: As you know, we (the “Buyer”), an affiliate of JustDevelop.it, have been discussing with you a possible acquisition of Total Security Limited, formerl

September 6, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 6, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Co

September 6, 2023 SC 13D

SST / System1 Inc - Class A / Trebia Acquisition Corp. - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Christopher Stephen Phillips c/o Just Develop It Limited Larch House Parklands Business Park Denmead, Hampshire PO7 6

September 6, 2023 EX-99.1

System1 Confirms Receipt of Indication of Interest for Total Security from Just Develop It

System1 Confirms Receipt of Indication of Interest for Total Security from Just Develop It LOS ANGELES, CA – September 6, 2023 – System1, Inc.

August 17, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 15, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Comm

August 9, 2023 EX-99.1

System1 Announces Second Quarter 2023 Financial Results

Exhibit 99.1 System1 Announces Second Quarter 2023 Financial Results •Revenue Decreased 33% Year-Over-Year to $147 Million •Gross Profit Decreased 26% Year-Over-Year to $41 Million •Adjusted Gross Profit Decreased 21% Year-Over-Year to $53 Million •GAAP Net Loss of $44 Million •Adjusted EBITDA of $15 Million •Company Provides Second Half 2023 Guidance of: $289 Million to $297 Million of Revenue an

August 9, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 9, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

August 9, 2023 EX-99.1

System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC System1, Inc. Successor + Predece

q223supplementalfinancia System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC System1, Inc. Successor + Predecessor Total Successor + Predecessor Total Successor + Predecessor Total S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC (in thousand

August 9, 2023 EX-99.2

August 2023Investor Presentation Disclaimer 1 Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc. (together with its subsidiaries, collectively “System1”) and does not constitute a

August 2023Investor Presentation Disclaimer 1 Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc.

August 9, 2023 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 9, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

August 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, Inc. (

August 7, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 1, 2023 System1, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 1, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 92-3978051 (State or other jurisdiction of incorporation or organization) (Commi

July 3, 2023 EX-99.1

System1 Announces First Quarter 2023 Financial Results

Exhibit 99.1 System1 Announces First Quarter 2023 Financial Results •Revenue decreased 23% Year-Over-Year to $168 Million •Gross Profit decreased 19% Year-Over-Year to $35 Million •Adjusted Gross Profit decreased 17% Year-Over-Year to $48 Million •GAAP Net Loss of $43 Million •Adjusted EBITDA of $10.3 Million •Company Provides Second Quarter 2023 guidance of: $146 Million to $149 Million of Revenu

July 3, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, Inc.

July 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 3, 2023 System1, Inc. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 3, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commiss

July 3, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 3, 2023 System1, Inc. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 3, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commiss

July 3, 2023 EX-99.1

System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC Successor + Predecessor Total Successor + Prede

q123supplementalfinancia System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC Successor + Predecessor Total Successor + Predecessor Total Successor + Predecessor Total S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC (in thousands) QTD QTD QTD QTD Sucessor

July 3, 2023 EX-99.2

June 2023Investor Presentation Disclaimer 1 Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc. (together with its subsidiaries, collectively “System1”) and does not constitute a pr

system1investorpresenta June 2023Investor Presentation Disclaimer 1 Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc.

June 22, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 15, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commis

June 22, 2023 EX-10.1

Employment Agreement, dated as of June 15, 2023, between Tridivesh Kidambi and System1, LLC.

EMPLOYMENT AGREEMENT THIS EMPLOYMENT AGREEMENT (this “Agreement”), dated as of June 15, 2023 (the “Effective Date”), is made and entered into by and between System1, Inc.

June 21, 2023 SC 13D/A

SST / System1 Inc - Class A / Trebia Acquisition Corp. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Christopher Phillips c/o Just Develop It Limited Larch House Parklands Business Park Denmead, Hampshire PO7 6XP Unite

June 8, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) ☑ Filed by the Registrant ☐ Filed by a Party other than the Registrant Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Def

June 7, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, For Use of the Commission only (as permitted by Rule 14a-6(e)(2)) ☒ Defin

June 6, 2023 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A (Amendment No. 1) (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number

June 6, 2023 EX-10.12

Employment Agreement, dated as of June 15, 2023, between Tridivesh Kidambi and System1, Inc.

Exhibit 10.12 OPENMAIL LLC EMPLOYMENT AGREEMENT Dear Tridi, We are thrilled to offer you the following position at OpenMail, and look forward to having you join the team! The below is our formal offer of employment to join the Company. In consideration of the compensation, benefits and promises contained herein and for other good and valuable consideration, the adequacy of which you and OpenMail L

June 6, 2023 EX-10.7

Credit and Guaranty Agreement, dated as of January 27, 2022, among Orchid Finco LLC, System1 Midco, LLC, Orchid Merger Sub II, LLC and the subsidiaries from time to time party thereto, S1 Holdco, LLC, Bank of America, N.A. and the lenders from time to time party thereto.

Exhibit 10.7 CREDIT AND GUARANTY AGREEMENT dated as of January 27, 2022 among ORCHID FINCO LLC and SYSTEM1 MIDCO, LLC, and after giving effect to the Closing Date Mergers, ORCHID MERGER SUB II, LLC, as the Borrower, S1 HOLDCO, LLC, as Holdings, THE SUBSIDIARIES OF THE BORROWER FROM TIME TO TIME PARTY HERETO, THE LENDERS FROM TIME TO TIME PARTY HERETO, BANK OF AMERICA, N.A., as Administrative Agent

June 6, 2023 EX-10.14

Employment Agreement, dated as of September 15, 2015, between Brian Coppola and OpenMail LLC.

Exhibit 10.14 OPENMAIL LLC EMPLOYMENT AGREEMENT Dear Brian, We are thrilled to offer you the following position at OpenMail, and look forward to having you join the team! The below is our formal offer of employment to join the Company. In consideration of the compensation, benefits and promises contained herein and for other good and valuable consideration, the adequacy of which you and OpenMail L

June 6, 2023 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A (Amendment No. 1) (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-

June 6, 2023 EX-99.1

System1 Announces Fourth Quarter and Full Year 2022 Financial Results

Exhibit 99.1 System1 Announces Fourth Quarter and Full Year 2022 Financial Results Fourth Quarter Financial Highlights: •Revenue decreased 7% Year-Over-Year to $187 million •Gross Profit increased 6% Year-Over-Year to $47 million •Adjusted Gross Profit increased 31% Year-Over-Year to $59 million •GAAP Net Loss of $51 million •Adjusted EBITDA increased 18% Year-Over-Year to $27 million, In-Line wit

June 6, 2023 EX-4.2

Description of Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934

Exhibit 4.2 DESCRIPTION OF REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following summary of the material terms of the securities of System1, Inc. registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). This description of the terms of our stock does not purport to be a complete summary of th

June 6, 2023 10-Q/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A (Amendment No. 1)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q/A (Amendment No. 1) (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-3

June 6, 2023 EX-10.8

Amended and Restated Revolving Note, dated May 16, 2023, by and among Orchid Merger Sub II, LLC, Lone Star Friends Trust and CEE Holding Trust

Exhibit 10.8 AMENDED AND RESTATED REVOLVING NOTE US $20,000,000 May 16, 2023 FOR VALUE RECEIVED, LONE STAR FRIENDS TRUST, being a trust created under the laws of the State of Texas acting by and through its trustee, Stanley Blend (“Lone Star”) and CEE HOLDING TRUST, being a trust created under the laws of the State of Wyoming acting by and through its trustee, Jackson Hole Trust Company, a Wyoming

June 6, 2023 EX-10.18

First Amendment to Conditional Consent, Waiver and Acknowledgement

Execution Version FIRST AMENDMENT TO CONDITIONAL CONSENT, WAIVER AND ACKNOWLEDGEMENT June 1, 2023 Reference is hereby made to that certain: (a) Business Combination Agreement, dated as of June 28, 2021, by and among System1 Inc.

June 6, 2023 EX-10.13

Employment Agreement, dated as of August 28, 2016, between Elizabeth Sestanovich and OpenMail LLC.

Exhibit 10.13 OPENMAIL LLC EMPLOYMENT AGREEMENT Dear Beth, We are thrilled to offer you the following position at OpenMail, and look forward to having you join the team! The below is our formal offer of employment to join the Company. In consideration of the compensation, benefits and promises contained herein and for other good and valuable consideration, the adequacy of which you and OpenMail LL

June 6, 2023 EX-4.2

CREDIT AND GUARANTY AGREEMENT dated as of January 27, 2022 ORCHID FINCO LLC and SYSTEM1 MIDCO, LLC, and after giving effect to the Closing Date Mergers, ORCHID MERGER SUB II, LLC, as the Borrower, S1 HOLDCO, LLC, as Holdings, THE SUBSIDIARIES OF THE

Execution Version CREDIT AND GUARANTY AGREEMENT dated as of January 27, 2022 among ORCHID FINCO LLC and SYSTEM1 MIDCO, LLC, and after giving effect to the Closing Date Mergers, ORCHID MERGER SUB II, LLC, as the Borrower, S1 HOLDCO, LLC, as Holdings, THE SUBSIDIARIES OF THE BORROWER FROM TIME TO TIME PARTY HERETO, THE LENDERS FROM TIME TO TIME PARTY HERETO, BANK OF AMERICA, N.

June 6, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): June 6, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commiss

June 6, 2023 EX-10.16

Employment Agreement, dated as of May 2, 2021, between Jennifer Robinson and System1, LLC.

Exhibit 10.16 EMPLOYMENT AGREEMENT Dear Jennifer, I am thrilled to offer you (the “Executive”) the following position at System1. Everyone who met you had great things to say, and we all look forward to having you join the team! The below is our formal offer of employment to join System1, LLC, a Delaware limited liability company (the "Company"). In consideration of the compensation, benefits and

June 6, 2023 EX-10.15

Employment Agreement, dated as of February 8, 2018, between Daniel Weinrot and OpenMail LLC.

Exhibit 10.15 EMPLOYMENT AGREEMENT Dear Daniel, We are thrilled to offer you the following position at Sysetm1 LLC, and look forward to having you join the team! The below is our formal offer of employment to join the Company. In consideration of the compensation, benefits and promises contained herein and for other good and valuable consideration, the adequacy of which you and System1 LLC a Delaw

June 6, 2023 EX-21.1

Subsidiaries of Registrant

Exhibit 21.1 Subsidiaries of System1, Inc. Subsidiary Name Jurisdiction S1 Holdco, LLC Delaware System1 S1, Inc. Delaware Orchid Merger Sub II, LLC Delaware System1 OpCo, LLC Delaware Protected.net Group Limited England & Wales Infospace Holdings LLC Delaware Qool Media Holdings, LLC Delaware Concourse Media Holdings, LLC Delaware Dotzup Holdings LLC Delaware System1 Canada ULC Nova Scotia System1

June 6, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, Inc. (Exac

May 10, 2023 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☑ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: March 31, 2023 ☐ Transition Report on Form 10-K ☐ Transition Report on Form 20-F ☐ Transition Report on Form 11-K ☐ Transition Report on Form 10-Q For the Transition Perio

April 12, 2023 EX-10.1

Revolving Note, dated April 10, 2023, by and among Lone Star Friends Trust, CEE Holding Trust, and Orchid Merger Sub II, LLC

REVOLVING NOTE US $20,000,000 April 10, 2023 FOR VALUE RECEIVED, LONE STAR FRIENDS TRUST, being a trust created under the laws of the State of Texas acting by and through its trustee, Stanley Blend (“Lone Star”) and CEE HOLDING TRUST, being a trust created under the laws of the State of Wyoming acting by and through its trustee, Jackson Hole Trust Company, a Wyoming corporation (“CEE” and together

April 12, 2023 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 10, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commi

April 6, 2023 EX-99.1

System1 Receives Notice of Late Filing from the NYSE

System1 Receives Notice of Late Filing from the NYSE LOS ANGELES, CA – April 6, 2023 – System1, Inc.

April 6, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 6, 2023 System1, Inc. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): April 6, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commis

March 21, 2023 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

 Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 11 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April

March 21, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 15, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commi

March 17, 2023 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

 Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 10 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April

March 17, 2023 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

 Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 10 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April

March 17, 2023 EX-99.1

System1 Postpones Reporting of Fourth Quarter and FY 2022 Financial Results

EX-99.1 2 pressrelease-earningscalld.htm EX-99.1 System1 Postpones Reporting of Fourth Quarter and FY 2022 Financial Results LOS ANGELES, CA – March 16, 2023 – System1, Inc. (NYSE: SST) (“System1” or the “Company”), an omnichannel customer acquisition marketing platform, announced today that the Company is postponing its scheduled earnings release and conference call for the fourth quarter and ful

March 17, 2023 8-K

Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 15, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commi

March 17, 2023 NT 10-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25/A (Amendment No. 1) NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25/A (Amendment No. 1) NOTIFICATION OF LATE FILING (Check one): [X] Form 10-K [ ] Form 20-F [ ] Form 11-K [ ] Form 10-Q [ ] Form 10-D [ ] Form N-CEN [ ] Form N-CSR For Period Ended: December 31, 2022 [ ] Transition Report on Form 10-K [ ] Transition Report on Form 20-F [ ] Transition Report on Form 11-K [ ] Transition

March 16, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 16, 2023 System1, Inc. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): March 16, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commi

March 16, 2023 EX-99.1

System1 Postpones Reporting of Fourth Quarter and FY 2022 Financial Results

System1 Postpones Reporting of Fourth Quarter and FY 2022 Financial Results •Company is Reviewing its Accounting for 2022 Business Combination •Company Expects No Material Changes to Previously Reported Revenue or Cash Expenses LOS ANGELES, CA – March 16, 2023 – System1, Inc.

March 16, 2023 NT 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check one): [X] Form 10-K [ ] Form 20-F [ ] Form 11-K [ ] Form 10-Q [ ] Form 10-D [ ] Form N-CEN [ ] Form N-CSR For Period Ended: December 31, 2022 [ ] Transition Report on Form 10-K [ ] Transition Report on Form 20-F [ ] Transition Report on Form 11-K [ ] Transition Report on Form 10-Q

March 14, 2023 SC 13D/A

SST / System1 Inc - Class A / Trasimene Trebia, LP - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D/A (Rule 13d-101) UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

March 14, 2023 SC 13D/A

SST / System1 Inc - Class A / Cannae Holdings, Inc. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A (Rule 13d-101) Under the Securities Exchange Act of 1934 (Amendment No. 3) System1, Inc. (Name of Issuer) Class A common stock, par value $0.0001 per share (Title of Class of Securities) 87200P109 (CUSIP Number) Michael L. Gravelle c/o Cannae Holdings, Inc. 1701 Village Center Circle Las Vegas, NV 89134 (702) 32

March 1, 2023 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

Filed pursuant to Rule 424(b)(3) Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 9 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April 18

March 1, 2023 EX-3.1

Second Amended and Restated Bylaws of System1, Inc.

Second Amended and Restated Bylaws of System1, Inc. (a Delaware corporation) TABLE OF CONTENTS Page Article I Corporate Offices 1 Section 1.1 Registered Office 1 Section 1.2 Other Offices 1 Article II Meetings of Stockholders 1 Section 2.1 Place of Meetings 1 Section 2.2 Annual Meeting 1 Section 2.3 Special Meeting 1 Section 2.4 Advance Notice Procedures for Business Brought before a Meeting 2 Sec

March 1, 2023 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): February 23, 2023 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Co

February 14, 2023 SC 13G/A

SST / System1 Group Plc / CITADEL ADVISORS LLC - SC 13G/A Passive Investment

SC 13G/A 1 tm233474-19sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO § 240.13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO § 240.13d-2 (Amendment No. 2)* System1, Inc. (Name of Issuer) Class A Common Stock, $0.0001 par value per share (the “Shares”) (

February 13, 2023 SC 13G/A

SST / System1 Group Plc / Beryl Capital Management LLC Passive Investment

SC 13G/A 1 system113g.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* System1, Inc. (Name of Issuer) Class A Common Stock, par value $0.0001 (Title of Class of Securities) 87200P109 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box t

December 16, 2022 CORRESP

4235 Redwood Avenue Marina Del Rey, CA 90066

CORRESP 1 filename1.htm December 16, 2022 VIA EDGAR TRANSMISSION U.S. Securities and Exchange Commission Division of Corporation Finance Office of Technology 100 F Street NE Washington, D.C. 20549 Attn: Ryan Rohn, Senior Staff Accountant Re: System1, Inc. Form 10-K for the Fiscal Year Ended December 31, 2021 Filed March 31, 2022 Form 8-K dated May 12, 2022 Response dated August 23, 2022 Response d

November 14, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, I

November 14, 2022 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

?Filed pursuant to Rule 424(b)(3) ?Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 8 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April

November 10, 2022 EX-99.1

System1 Announces Third Quarter 2022 Financial Results

Exhibit 99.1 System1 Announces Third Quarter 2022 Financial Results ?Revenue Grew 17% Year-Over-Year to $201 Million ?Gross Profit Grew 21% Year-Over-Year to $50 Million ?Adjusted Gross Profit Grew 49% Year-Over-Year to $63 Million ?Net Loss of $38 Million ?Adjusted EBITDA increased 28% to $29 Million Compared to $23 Million in the Prior Year ?Company Updates Full-Year 2022 Guidance: $830 Million

November 10, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 10, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Co

November 10, 2022 EX-99.1

Q4 2022Investor Presentation Disclaimer 1 Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc. (together with its subsidiaries, collectively “System1”) and does not constitute a pros

Q4 2022Investor Presentation Disclaimer 1 Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc.

November 10, 2022 EX-99.1

System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC Successor + Predece

System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC Successor + Predecessor Total Successor + Predecessor Total S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC (in thousands) Sucessor P

November 10, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 10, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Co

November 10, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 10, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Co

November 3, 2022 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

?Filed pursuant to Rule 424(b)(3) ?Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 7 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April

November 2, 2022 EX-10.1

Transition and Advisory Services Agreement, dated as of November 2, 2022, by and among System1, Inc. and Paul Filsinger.

Exhibit 10.1 TRANSITION & ADVISORY SERVICES AGREEMENT THIS TRANSITION AND ADVISORY SERVICES AGREEMENT (the ?Agreement?) is made and entered into as of November 2, 2022, by and among System1, Inc. (the ?Company?) and Paul Filsinger (the ?Advisor?). RECITALS A. The Advisor currently serves as President of the Company pursuant to that certain Employment Agreement with System1 OpCo, LLC (f/k/a System1

November 2, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): November 2, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Com

September 27, 2022 SC 13D/A

SST / System1 Group Plc / Phillips Christopher Stephen - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Christopher Phillips c/o Just Develop It Limited Larch House Parklands Business Park Denmead, Hampshire PO7 6XP Unite

September 23, 2022 CORRESP

4235 Redwood Avenue Marina Del Rey, CA 90066

September 23, 2022 VIA EDGAR TRANSMISSION U.S. Securities and Exchange Commission Division of Corporation Finance Office of Technology 100 F Street NE Washington, D.C. 20549 Attn: Ryan Rohn, Senior Staff Accountant Re: System1, Inc. Form 10-K for the Fiscal Year Ended December 31, 2021 Filed March 31, 2022 Form 8-K dated May 12, 2022 Response dated August 23, 2022 File No. 001-39331 Dear Mr. Rohn:

September 15, 2022 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

Filed pursuant to Rule 424(b)(3) Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 6 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April 18

September 9, 2022 SC 13D/A

SST / System1 Group Plc / Baker Nicholas - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Nicholas Baker c/o Just Develop It Limited Larch House Parklands Business Park Denmead, Hampshire PO7 6XP United King

September 8, 2022 SC 13D/A

SST / System1 Group Plc / Phillips Christopher Stephen - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Christopher Phillips c/o Just Develop It Limited Larch House Parklands Business Park Denmead, Hampshire PO7 6XP Unite

September 1, 2022 EX-99.1

Q3 2022Investor Presentation Disclaimer 1 Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc. (together with its subsidiaries, collectively “System1”) and does not constitute a pros

Q3 2022Investor Presentation Disclaimer 1 Safe Harbor Disclaimer for Forward-Looking Statements This presentation has been prepared by management of System1, Inc.

September 1, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): September 1, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Co

August 30, 2022 EX-10.1

Conditional Consent, Waiver and Acknowledgement, dated as of August 30, 2022, by and among System1, Inc., Protected.net Group Limited and Just Develop It Limited.

Execution Version CONDITIONAL CONSENT, WAIVER AND ACKNOWLEDGEMENT August 30, 2022 Reference is hereby made to that certain: (a) Business Combination Agreement, dated as of June 28, 2021, by and among System1 Inc.

August 30, 2022 EX-10.2

Lock-Up Agreement, dated as of August 30, 2022, by and between System1, Inc. and Christopher Phillips.

LOCK-UP AGREEMENT August 30, 2022 System1, Inc. 4235 Redwood Avenue Marina Del Rey, California 90066 To the addressees set forth above: This lock-up agreement (this ?Lock-Up Agreement?) is made and entered into by and between System1, Inc., a Delaware corporation (the ?Company?) (formerly known as Trebia Acquisition Corp., a Cayman Islands exempted company limited by shares prior to its domesticat

August 30, 2022 EX-10.3

Lock-Up Agreement, dated as of August 30, 2022, by and between System1, Inc. and Nicholas Baker.

LOCK-UP AGREEMENT August 30, 2022 System1, Inc. 4235 Redwood Avenue Marina Del Rey, California 90066 To the addressees set forth above: This lock-up agreement (this ?Lock-Up Agreement?) is made and entered into by and between System1, Inc., a Delaware corporation (the ?Company?) (formerly known as Trebia Acquisition Corp., a Cayman Islands exempted company limited by shares prior to its domesticat

August 30, 2022 8-K

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 30, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Comm

August 30, 2022 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

 Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 5 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April

August 23, 2022 CORRESP

4235 Redwood Avenue Marina Del Rey, CA 90066

CORRESP 1 filename1.htm August 23, 2022 VIA EDGAR TRANSMISSION U.S. Securities and Exchange Commission Division of Corporation Finance Office of Technology 100 F Street NE Washington, D.C. 20549 Attn: Ryan Rohn, Senior Staff Accountant Re: System1, Inc. Form 10-K for the Fiscal Year Ended December 31, 2021 Filed March 31, 2022 Form 8-K dated May 12, 2022 File No. 001-39331 Dear Mr. Rohn: This lett

August 19, 2022 SC 13D/A

SST / System1 Group Plc / Trasimene Trebia, LP - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D/A (Rule 13d-101) UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

August 17, 2022 SC 13D/A

SST / System1 Group Plc / Phillips Christopher Stephen - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Christopher Phillips c/o Just Develop It Limited Larch House Parklands Business Park Denmead, Hampshire PO7 6XP Unite

August 16, 2022 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

424B3 1 s-1resaleshelfregistration.htm 424B3  Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 4 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the informa

August 15, 2022 EX-99.1

System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC Successor + Predecessor Total S1

System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC Successor + Predecessor Total S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC (in thousands) Sucessor Period Sucessor Period Predecessor Period QTD

August 15, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, Inc. (

August 15, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 15, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Comm

August 11, 2022 EX-99.1

System1 Announces Second Quarter 2022 Financial Results

Exhibit 99.1 System1 Announces Second Quarter 2022 Financial Results ?Revenue Grew 30% Year-Over-Year to $220 Million ?Revenue Grew 7% Year-Over-Year on a Pro Forma Basis ?Gross Profit1 Grew 55% Year-Over-Year to $67 Million ?Adjusted Gross Profit Grew 31% Year-Over-Year to $74 Million on a Pro Forma Basis ?Net Loss of $34 million ?Adjusted EBITDA increased 20% to $41 million compared to $34 Milli

August 11, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 11, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Comm

August 11, 2022 EX-99.1

System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC Successor + Predecessor Total S1

System1, Inc./S1 Holdco LLC Unaudited Statements of Operations System1, Inc. System1, Inc. S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC Successor + Predecessor Total S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC S1 Holdco LLC (in thousands) Sucessor Period Sucessor Period Predecessor Period QTD

August 11, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): August 11, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Comm

August 10, 2022 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

Filed pursuant to Rule 424(b)(3) Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 3 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April 18

August 10, 2022 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

424B3 1 s-1resaleshelfprosuppno24.htm 424B3  Filed pursuant to Rule 424(b)(3)  Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 2 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the informat

July 8, 2022 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): July 6, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commiss

July 8, 2022 EX-3.1

Amended and Restated Bylaws

Exhibit 3.1 Amended and Restated Bylaws of System1, Inc. (a Delaware corporation) i TABLE OF CONTENTS Page ARTICLE I CORPORATE OFFICES.............................................................................................1 Section 1.1 Registered Office .........................................................................................1 Section 1.2 Other Offices ........................

July 8, 2022 EX-10.1

Sixth Amended and Restated Limited Liability Company Operating Agreement of S1 Holdco, LLC

Exhibit 10.1 S1 HOLDCO, LLC A Delaware Limited Liability Company SIXTH AMENDED AND RESTATED LIMITED LIABILITY COMPANY OPERATING AGREEMENT Dated as of July 7, 2022 THE UNITS REPRESENTED BY THIS SIXTH AMENDED AND RESTATED LIMITED LIABILITY COMPANY OPERATING AGREEMENT HAVE NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS AMENDED, OR UNDER ANY OTHER APPLICABLE SECURITIES LAWS. SU

June 8, 2022 EX-99.1

Joint Filing Agreement

Exhibit 99.1 Joint Filing Agreement Pursuant to and in accordance with the Securities Exchange Act of 1934, as amended (the ?Exchange Act?), and Rule 13d-1(k)(1) thereunder, the undersigned hereby agree to the joint filing on behalf of each of them of any filing required by such party under Section 13(d) of the Exchange Act or any rule or regulation thereunder (including any amendment, restatement

June 8, 2022 SC 13D/A

SST / System1 Group Plc / Trasimene Trebia, LP - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D/A (Rule 13d-101) UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

May 23, 2022 SC 13D/A

SST / System1 Group Plc / Cannae Holdings, Inc. - SC 13D/A Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13D/A (Rule 13d-101) UNDER THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

May 19, 2022 EX-99.1

System1, Inc./S1 Holdco LLC

Exhibit 99.1 System1, Inc./S1 Holdco LLC Unaudited Statements of Operations (in thousands) System1, Inc. Sucessor Period S1 Holdco LLC Predecessor Period S1 Holdco LLC QTD S1 Holdco LLC QTD S1 Holdco LLC QTD S1 Holdco LLC QTD S1 Holdco LLC QTD S1 Holdco LLC QTD S1 Holdco LLC QTD S1 Holdco LLC QTD S1 Holdco LLC YTD S1 Holdco LLC YTD S1 Holdco LLC YTD S1 Holdco LLC YTD S1 Holdco LLC YTD S1 Holdco LL

May 19, 2022 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 18, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation) (Commission File Number)

May 19, 2022 424B3

Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants

?Filed pursuant to Rule 424(b)(3) ?Registration No. 333-262608 PROSPECTUS SUPPLEMENT NO. 1 (to prospectus dated April 18, 2022) Up to 25,483,334 Shares of Class A Common Stock Issuable Upon Exercise of Warrants Up to 106,508,061 Shares of Common Stock Up to 8,424,034 Warrants This prospectus supplement is being filed to update and supplement the information contained in the prospectus dated April

May 19, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For transition period from to Commission file number 001-39331 System1, Inc.

May 16, 2022 NT 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 12b-25 NOTIFICATION OF LATE FILING (Check one): ☐ Form 10-K ☐ Form 20-F ☐ Form 11-K ☑ Form 10-Q ☐ Form 10-D ☐ Form N-CEN ☐ Form N-CSR For Period Ended: March 31, 2022 ☐ Tran

OMB APPROVAL OMB Number: 3235-0058 Expires: April 30, 20225 Estimated average burden hours per response 2.

May 12, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported): May 12, 2022 System1, Inc. (Exact name of registrant as specified in its charter) Delaware 001-39331 98-1531250 (State or other jurisdiction of incorporation or organization) (Commiss

May 12, 2022 EX-99.1

Period from January 1, 2021 through March 31, 2021

Exhibit 99.1 System1 Announces Preliminary First Quarter 2022 Financial Results ?Revenue Grew 48% Year-Over-Year to $219 Million1 ?Pro Forma Revenue Grew 29% Year-Over-Year to $231 Million ?Gross Profit Grew 55% Year-Over-Year to $57 Million2 ?Pro Forma Gross Profit Grew 58% Year-Over-Year to $61 Million ?Company Has Completed Three Acquisitions Year-To-Date, Including Answers.com On May 4th ?Comp

May 5, 2022 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Secu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Stanley Blend c/o Lone Star Friends Trust 14122 Bluff Manor Drive San Antonio, TX 78216 (Name, Address and Telephone

May 5, 2022 EX-99.D

AGREEMENT OF JOINT FILING PURSUANT TO RULE 13d-1(k)

Exhibit D AGREEMENT OF JOINT FILING PURSUANT TO RULE 13d-1(k) Each of the undersigned acknowledges and agrees that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.

May 5, 2022 EX-99.A

Agreement of Joint Filing as required by Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended (previously filed).

Exhibit A AGREEMENT OF JOINT FILING PURSUANT TO RULE 13d-1(k) Each of the undersigned acknowledges and agrees that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.

May 5, 2022 SC 13D/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Secu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Christopher Phillips c/o Just Develop It Limited Larch House Parklands Business Park Denmead, Hampshire PO7 6XP Unite

May 5, 2022 SC 13D

SST / System1 Group Plc / Baker Nicholas - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* System1, Inc. (Name of Issuer) Class A Common Stock, Par Value $0.0001 Per Share (Title of Class of Securities) 87200P109 (CUSIP Number) Nicholas Baker c/o Just Develop It Limited Larch House Parklands Business Park Denmead, Hampshire PO7 6XP United Kingd

April 27, 2022 S-8

As filed with the Securities and Exchange Commission on April 27, 2022

As filed with the Securities and Exchange Commission on April 27, 2022 Registration No.

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